Abstract
Aim:On the basis of identified source of major bacterial infections at four agro-climatic zones in West Bengal the cost-effective biosecurity strategy was formulated for backyard poultry farmers. The aim of the present study was to assess the adoption. So, the study was aimed to detect the adoption level of the formulated biosecurity strategy to mitigate the Salmonella and Escherichia coliweek post-hatch period chicks were contamination level in the sources and its correlation with egg production in West Bengal.Materials and Methods:A questionnaire was prepared querying regarding the biosecurity measures presently followed by the farmers, if any and egg production of their birds. Subsequent to the interview the formulated biosecurity strategy was conveyed. After 3 months, the interview with the same questionnaire was conducted to the same farmers to detect their adoption level.Results:The change in practices were noted in certain parameters which differs significantly (p<0.01 or p<0.05). As a consequence, the average egg production/flock was increased in 3 months after adoption of the strategy (618.2±37.77/flock) in comparison to last 3 months average before adoption of the strategy (495.3±30.00/flock) which also differs significantly (p<0.01).Conclusion:The present study detected the implementation of the biosecurity strategy in backyard poultry farming in West Bengal can substantially benefit the farmers in terms of increased egg production.
Highlights
In the developing poultry embryo, the sole energy source is yolk
No significant differences were observed in moisture, protein and lipid content of breast and thigh muscle of broiler due to supplemented fat whereas, 2.5% dietary fat significantly (p
It may be concluded that supplementation of fat in broilers diet improves the overall feed conversion ratio (FCR), dressing percentage and gain more body weight
Summary
Yolk is utilized in newly hatched chick either by direct transfer to circulation or by transport through the yolk stalk into the small intestine. Antiperistaltic movements transfer the yolk to the proximal part of the small intestine whereas, pancreatic lipase digest the acyl lipids. Oleic acid is highly absorbed close to hatch. Hydrophilic compounds such as glucose and amino acids are not well absorbed in yolk rich medium. Absorption of glucose and amino acids increases with age and with the development of hydrophilic conditions in the intestinal lumen [1]. During 1st week post hatch nutrient utilization is gradually increased. This stage of development is very crucial for modern broiler industry.
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